Do Houseplants Really Clean the Air? Yes — But There's One Thing You Should Know Inverse February 7, 2020 Research by Michael Waring, PhD, an associate professor in the College of Engineering, andBryan Cummings, a doctoral student in the College, showing that houseplants do not contribute to improving indoor air quality, was featured in a Feb. 7 Inverse story. View Story Topical Tags: College of Engineering environmental engineering Share Related